Six different machines are being considered for use manufacturing rubber seals. The machines are being compare with respect to tensile strength of the product. A random sampl of four seals from each machine is used to determine whether th mean tensile strength varies from machine to machine. Th following are the tensile-strength measurements in kilograms pe square centimeter x 10-¹: 1 17.5 16.9 15.8 3 4 5 20.3 14.6 17.5 15.7 16.7 19.2 17.8 20.8 16.5 18.6 18.9 18.9 20.5 Perform the analysis of variance at the 0.05 level of significanc and indicate whether the mean tensile strengths differ significant for the six machines. Machine 2 16.4 19.2 17.7 15.4 6 18.3 16.2 17.5 20.1

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Six different machines are being considered for use in
manufacturing rubber seals. The machines are being compared
with respect to tensile strength of the product. A random sample
of four seals from each machine is used to determine whether the
mean tensile strength varies from machine to machine. The
following are the tensile-strength measurements in kilograms per
square centimeter x 10-1:
Machine
3
4
20.3
14.6
15.7
16.7
17.8
20.8
18.6
18.9
18.9
20.5 20.1
Perform the analysis of variance at the 0.05 level of significance
and indicate whether the mean tensile strengths differ significantly
for the six machines.
1
17.5
16.9
15.8
2
16.4
19.2
17.7
15.4
5
17.5
19.2
16.5
6
18.3
16.2
17.5
Transcribed Image Text:Six different machines are being considered for use in manufacturing rubber seals. The machines are being compared with respect to tensile strength of the product. A random sample of four seals from each machine is used to determine whether the mean tensile strength varies from machine to machine. The following are the tensile-strength measurements in kilograms per square centimeter x 10-1: Machine 3 4 20.3 14.6 15.7 16.7 17.8 20.8 18.6 18.9 18.9 20.5 20.1 Perform the analysis of variance at the 0.05 level of significance and indicate whether the mean tensile strengths differ significantly for the six machines. 1 17.5 16.9 15.8 2 16.4 19.2 17.7 15.4 5 17.5 19.2 16.5 6 18.3 16.2 17.5
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